SIC	Industry Description (1972)	Total # Employees (Male & Female)	Total # Female Employees
13	OIL AND GAS EXTRACTION	4,455
15	GENERAL BUILDING CONTRACTORS	23,123	5
16	HEAVY CONSTRUCTION CONTRACTORS	9,307
17	SPECIAL TRADE CONTRACTORS	77,486	77
20	FOOD AND KINDRED PRODUCTS	263
22	TEXTILE MILL PRODUCTS	882	227
23	APPAREL AND OTHER TEXTILE PRODUCTS	415
24	LUMBER AND WOOD PRODUCTS	10,412	3,892
25	FURNITURE AND FIXTURES	2,098	891
26	PAPER AND ALLIED PRODUCTS	21,475	4,080
27	PRINTING AND PUBLISHING	16,416	2,158
28	CHEMICALS AND ALLIED PRODUCTS	1,261	31
29	PETROLEUM AND COAL PRODUCTS	3,439
30	RUBBER AND MISC. PLASTICS PRODUCTS	19,735	3,469
31	LEATHER AND LEATHER PRODUCTS	3,669	2,280
32	STONE, CLAY, AND GLASS PRODUCTS	12,258	356
33	PRIMARY METAL INDUSTRIES	17,497	87
34	FABRICATED METAL PRODUCTS	6,201	259
35	MACHINERY, EXCEPT ELECTRICAL	20,516	450
36	ELECTRIC AND ELECTRONIC EQUIPMENT	3,154	697
37	TRANSPORTATION EQUIPMENT	16,109	931
38	INSTRUMENTS AND RELATED PRODUCTS	382
39	MISCELLANEOUS MANUFACTURING INDUSTRIES	2,066
40	RAILROAD TRANSPORTATION	22
41	LOCAL AND INTERURBAN PASSENGER TRANSIT	3,897
42	TRUCKING AND WAREHOUSING	1,451
45	TRANSPORTATION BY AIR	207
48	COMMUNICATION	250	29
49	ELECTRIC, GAS, AND SANITARY SERVICES	4,274
50	WHOLESALE TRADE - DURABLE GOODS	5,277
51	WHOLESALE TRADE - NONDURABLE GOODS	6,519	474
55	AUTOMOTIVE DEALERS & SERVICE STATIONS	853	427
72	PERSONAL SERVICES	216
73	BUSINESS SERVICES	6,562	576
75	AUTO REPAIR, SERVICES, AND GARAGES	3,126
80	HEALTH SERVICES	1,398	33
TOTAL		306,673	21,428

*(1) By survey design, not all 2-digit SICs were surveyed. (2) The estimates for each 2-digit SIC apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC. Not all SICs were surveyed. (3) When using the estimates, standard errors associated with estimates should be considered. (4) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.